Question:

One type of liquid contains 25% of milk, the other type of liquid contains 30% of milk. A can is filled with 6 parts of the first liquid and 4 parts of the second liquid. Find the percentage of milk in the new mixture.

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In mixture problems, use the weighted average formula: (Quantity×Percentage)Total Quantity \frac{\sum (\text{Quantity} \times \text{Percentage})}{\text{Total Quantity}}
Updated On: Mar 7, 2025
  • 23%
  • 27%
  • 50%
  • 13%
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The Correct Option is B

Solution and Explanation

Using weighted average formula: Milk percentage=(6×25)+(4×30)6+4 \text{Milk percentage} = \frac{(6 \times 25) + (4 \times 30)}{6 + 4} =150+12010=27010=27 = \frac{150 + 120}{10} = \frac{270}{10} = 27% Thus, the percentage of milk in the new mixture is 27%.
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